deserializing a nested array JSON in C# returning null values

Question

I am getting null values returned when I deserialize a JSON using newtonSoft JSON. Here is my JSON:

        {"odata.metadata":"https://graph.abc.com/testapi",
    "value":
    [{"capabilityStatus":"Enabled",
    "consumedUnits":2,
    "objectId":"c9992e5ef110_6fd2c87-1e91e994b900",
    "prepaidUnits":{"enabled":25,"suspended":0,"warning":0},
    "servicePlans":
    [{"servicePlanId":"4ccb","servicePlanName":"YAMMER_ENTERPRISE"},
    {"servicePlanId":"bea4","servicePlanName":"RMS_S_ENTERPRISE"},
    {"servicePlanId":"43de","servicePlanName":"OFFICESUBSCRIPTION"},
    {"servicePlanId":"0fea","servicePlanName":"MCOSTANDARD"},
    {"servicePlanId":"e95be","servicePlanName":"SHAREPOINTWAC"},
    {"servicePlanId":"5dbe","servicePlanName":"SHAREPOINTENTERPRISE"},
    {"servicePlanId":"efb8","servicePlanName":"EXCHANGE_S_ENTERPRISE"}],
    "skuId":"42f0-b197",
    "skuPartNumber":"ENTERPRISEPACK"}]}

and here are my classes:

    public class PrepaidUnits
            {
            public int enabled { get; set; }
            public int suspended { get; set; }
            public int warning { get; set; }
            }

            public class ServicePlan
            {
            public string servicePlanId { get; set; }
            public string servicePlanName { get; set; }
            }

            public class Value
            {
            public string capabilityStatus { get; set; }
            public int consumedUnits { get; set; }
            public string objectId { get; set; }
            public PrepaidUnits prepaidUnits { get; set; }
            public List<ServicePlan> servicePlans { get; set; }
            public string skuId { get; set; }
            public string skuPartNumber { get; set; }
            }

            public class Graphdata
            {
            public string odata_metadata { get; set; }
            public List<Value> value { get; set; }
            }

So here is the problem, when I deserialize using the following statement, I get returned null values for servicePlanId and servicePlanName. what am I doing wrong here?

        var graphAPIDataDeserialized = JsonConvert.DeserializeObject<ServicePlan>(graphResult);

However, when I use the Graphdata class I can see all the values in the JSON response:

       var graphAPIDataDeserialized = JsonConvert.DeserializeObject<Graphdata>(graphResult);

Thanks in advance for your help!

StriplingWarrior · Accepted Answer · 2014-05-22 23:34:03Z

2

This is the expected behavior of any JSON parser. The string you give it is supposed to represent the object that you want to get out of it, so when you say:

JsonConvert.DeserializeObject<ServicePlan>(graphResult)

... you're instructing it to deserialize the graph result into a ServicePlan object. It creates a ServicePlan, looks at the object you've given it (the "graph result"), finds no properties named servicePlanId, etc., so it doesn't set any values on those properties.

If you're trying to create a ServicePlan, you need to pass it a string value more like {"servicePlanId":"4ccb","servicePlanName":"YAMMER_ENTERPRISE"}.

On the other hand, if you're trying to get the ServicePlans out of your deserialized graph result, you can say:

JsonConvert.DeserializeObject<Graphdata>(text).value[0].servicePlans

answered May 22, 2014 at 23:34

StriplingWarrior

158k29 gold badges261 silver badges326 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

mujno Over a year ago

Thanks, I was trying to get the ServicePlans out of the deserilized graph result. I was able to get it using your hint and using the following statement: var graphAPIDataDeserialized = JsonConvert.DeserializeObject<Graphdata>(graphResult).value[0].servicePlans;

Collectives™ on Stack Overflow

deserializing a nested array JSON in C# returning null values

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related